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74ACT11245NT Scheda tecnica(PDF) 1 Page - Texas Instruments |
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74ACT11245NT Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 25 page 74ACT11245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCAS031C – JULY 1987 – REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 3-State Outputs Drive Bus Lines Directly D Inputs Are TTL-Voltage Compatible D Flow-Through Architecture Optimizes PCB Layout D Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise D EPICt (Enhanced-Performance Implanted CMOS) 1- mm Process D 500-mA Typical Latch-Up Immunity at 125 °C D Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, and Standard Plastic 300-mil DIPs (NT) description The octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The 74ACT11245 is characterized for operation from –40 °C to 85°C. FUNCTION TABLE OUTPUT ENABLE OE DIRECTION CONTROL DIR OUTPUT L L B data to A bus L H A data to B bus H X Isolation Copyright © 1996, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC is a trademark of Texas Instruments Incorporated. 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 A1 A2 A3 A4 GND GND GND GND A5 A6 A7 A8 DIR B1 B2 B3 B4 VCC VCC B5 B6 B7 B8 OE DB, DW, NT, OR PW PACKAGE (TOP VIEW) |
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